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【单选题】
It seems as if it ___ rain.A.
will
B.
is going to
C.
is to
D.
were going to
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【简答题】Now that final exams are history, you seem to have that extra bounce. After all, winter 1 awaits you. Get off that couch and begin the more productive life you should be living 2 our help. Spring F...
【单选题】关于因果稳定离散时间LTI系统，以下说法错误的是 。
A.
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B.
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C.
系统函数的收敛域包含单位圆
D.
单位脉冲响应是绝对可和的
【单选题】A: You seem to have a lot of work to do in your office. You've always been working overtime. B: ______
A.
You are right, but don't you know the meaning of work?
B.
Sorry, I don't think so. I get overpaid overwork, you know.
C.
That's right. All work and no play makes Jack a dull boy.
D.
That's right, but the work is interesting. I don't mind some extra hours at all
【简答题】They have offices in the ______ (commerce) heart of the city.
【单选题】They have offices in the ___________ heart of the city.
A.
commerce
B.
commercialize
C.
commercial
D.
commercially
【简答题】The United States is full of automobiles. There are still many families without cars, but some families have two or even more. However, cars are used for more than pleasure. They are a necessary part ...
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